Integrated Conveyors, Expandable Gravity Roller Conveyor is ideal for conveying odd shape boxes and low grade corrugated cartons that could get hung up on skate wheel conveyors. Cartons easily follow the twist and turns of the conveyor path without any pre-engineered consideration. Conveyor easily expands and compacts with little effort. Individual conveyors may be connected together to create extra long conveyors by adding optional connecting brackets. Load and unload trailers with ease; helps minimize distances employees have to walk during the process.